I am creating a project which requires the power of an Arduino Mega2560 but in a restricted space. So I have built a board with the chip and all associated components required to reproduce the basics. I am loading the bootloader using the excellent procedure here... http://www.gammon.com.au/bootloader
The issue I'm having is that the bootloader works only once, the second time I attempt to use the normal serial programmer through a Sparkfun FTDI interface, it fails to communicate. I have seen comment in another thread that this is due to the fuses not being set properly... http://forum.arduino.cc/index.php?topic=288853.0
But I'm not sure what these should be set to or how does one go about changing the settings that are given by the bootloader process.
All this is a bit strange because a board I assembled a few months ago and bootloaded by the same process does not suffer the above problem.
Any help with this issue would be most welcome.
Andy Stephenson Oxford UK